Tenant Turner Property Management News and Industry Insights

Allowing Window or Portable AC Units: What Property Managers Should Know

Written by Tenant Turner Team | Oct 22, 2025 3:00:00 PM

Seventy-five percent of Americans routinely argue with their partner about the thermostat setting, according to this survey.  Hopefully, those petty arguments don’t end in legal proceedings.

But when the debate over what constitutes a just-right temperature plays out between tenant and landlord or property manager,  it gets a lot more complicated—particularly when it comes to allowing portable AC units.  

The trouble is, whether tenants have a legal right to install portable air conditioners depends on many factors, including:  

  1. State and local ordinances 
  2. Insurance and safety requirements 
  3. Lease terms and policy enforcement details 
  4. Property-specific issues (e.g. lack of electrical load capacity) 
  5. The type of portable air conditioner   

Let’s review all these considerations and more—including what’s typically required of landlords, what rights tenants have, and common circumstances where PMs may allow tenant-provided cooling.  

Are Landlords Legally Required to Allow Portable AC? 

In most cases, no. But requirements vary by state, and the legal landscape is evolving. 

Nearly every state recognizes some sort of implied standard of livability, or habitability.  This means landlords must provide safe, sanitary, and livable housing.  

Historically, that meant providing heat, not cooling.  

But because of more extreme heat events happening all over the country and the danger they pose to vulnerable populations, these laws are evolving.  

For example, Senate Bill 1536 in Oregon prohibits landlords from banning portable AC units, with certain exceptions. Specifically, Oregon-based landlords can still prohibit portable cooling units that: 

  1. Violate building codes or state or federal law. 
  1. Require hardware that “would damage or void the warranty of a window or frame, puncture the envelope of the building or otherwise cause significant damage." 

Practically speaking, this allows most landlords to prohibit window-mounted AC units, but it forces them to allow rolling floor units.  

Other cities, including Olympia, New York City, Chicago, New Orleans, and Dallas, have similar ordinances that require landlords to provide or allow cooling capable of maintaining a certain indoor temperature, usually between 80 and 85 degrees.  

Outside of these select areas, landlords may be required to allow portable AC if a tenant’s disability or medical condition requires cooling, provided the device doesn’t create an undue burden or safety issue. This would fall under the Fair Housing Act’s rules on reasonable accommodation.  

(For concrete examples of situations to help you determine whether your AC ban is valid, check out this table.) 

Should PMs Allow Portable AC units? 

Many property managers don’t just allow portable units; they store them to lend or rent out to tenants as a courtesy if there’s a temporary cooling issue.  

On a more permanent basis, PMs tend to allow rolling floor units but are more restrictive with window units. And despite what many tenants think, restricting window units is not an arbitrary decision. There are plenty of real reasons window AC units are not allowed, which include:  

  • Improperly installed window units cause damage to windows and window frames.  
  • Some insurers don’t allow window-mounted AC units. 
  • Window-mounted units can overload the property’s electrical load capacity. 
  • AC units can cause excessive noise and are an eyesore. 
  • Certain windows cannot be blocked due to fire code compliance. 

To address these issues, some PMs allow window units, but only if the tenant pays for a trusted vendor to handle the installation and maintenance.  To make sure you find dependable tenants, here some strategies for finding good tenants.

Others prohibit window-mounted units but allow plug-in portables, even if they don’t have to. These PMs also set specific rules, like requiring regular inspections, to prevent potential water damage from plug-in units.  

If a PM Allows Portable AC, How Should They Manage it?  

Every property, climate, city, state, and owner is different. So there’s no one right answer to the question of whether you should allow portable AC.  

But if you have decided to allow portable cooling, these are the steps you should take. 

  1. Set a policy: Based on state and local laws, determine if you’ll allow window AC units and/or portable plug-ins.   
  2. Create limits: At a minimum, determine how many units are allowed, where the units are allowed and where they’re not.  
  3. Determine procedures: Decide how you’ll minimize the risk of property damage — through regular inspections, requiring professional installation, mandating certain preventive measures, or all of the above. 
  4. Document responsibility: Formalize in writing who pays for what, including installation and maintenance and damage linked to misuse. 

A clear, written policy turns gray areas into guardrails. Paired with practical safeguards, such as professional installs, reasonable limits, and inspections, this reduces risk and keeps tenants happy.  

The Bottom Line 

The right approach to portable ACs is nuanced. Your decision should weigh resident needs with building safety, insurance requirements, and local laws. But providing this amenity doesn't have to be a headache. Think of it as an opportunity to serve.  

When tenants know the rules, you lower the risk of damage while maximizing comfort. Plus, there’s fewer mid-July heat emergencies for your team to worry about.  

 

Is Your Portable AC Ban Valid?  

Invalid 

Can be Challenged 

 Valid 

A state or city law prohibits landlords from banning portable or window ACs. 

The tenant can show it’s a reasonable accommodation for a medical condition. 

The lease forbids AC units, and no overriding state or local law grants tenants the right to use them. 

A ban violates habitability or safety codes where local ordinances require cooling in extreme heat. 

The AC unit causes no damage or alteration and no law prohibits it, but the landlord bans it anyway without justification. 

The AC poses a safety, structural, or insurance risk (e.g., improper electrical load). 

The prohibition is discriminatory or selectively enforced against certain tenants or groups. 

The unit is necessary for health or safety reasons and the landlord refuses to make reasonable allowances. 

The building’s insurance or code prohibits window units for liability reasons. 

The ban contradicts another lease clause granting reasonable use of electrical appliances or does not apply to portable devices. 

The landlord’s policy is inconsistent — allowing some tenants to have units but not others without a clear basis. 

The unit installation requires modification to windows, walls, or electrical systems in violation of the lease’s alteration clause. 

The landlord’s ban is retaliatory (e.g., issued after a tenant files a complaint or requests repairs). 

 

The building provides an adequate cooling system, and the AC ban is based on redundancy or system limits.